Method:
Preheat oven to 375.
Combine all Whoopie Pie ingredients in a small food proccesor.
Drop battter into 4 equally sized disks on a parchment paper lined baking sheet (for easy removal). You can spread your batter out if you desire.
Bake for 18-20 minutes, or until center of cake pieces are baked through.
Place in fridge to cool for a few minutes.
Meanwhile, combine Cream Filling ingredients.
Sandwich Cream Filling between two of your chocolate cake pieces and enjoy!